JVC TM-H1375SU manual Troubleshooting

TROUBLESHOOTING

Solutions to common problems related to your monitor are described here. If none of the solutions presented here solves the problem, unplug the monitor and consult a JVC-authorised dealer or service centre for assistance.

Problems	Points to be checked	Measures (Remedy)
No power supply.	Is the power plug loosened or disconnected?	Firmly insert the power plug.
No picture with the	Is the video signal output from the connected	Set the connected component correctly.
power on.	component?
	Is the input signal selected properly?	Select the required video signal input with the
		Input select button. (See page 7.)
	Is the video cable disconnected?	Connect the video signal cable firmly.
		(See pages 12 and 13.)
No sound.	Is the audio signal output from the connected	Set the connected component correctly.
	component?
	Is the volume output set to minimum?	Adjust the speaker volume with the VOLUME/
		SELECT button. (See page 7.)
	Is the audio cable disconnected?	Connect the audio signal cable firmly.
		(See pages 12 and 13.)
Shaking picture.	Is the monitor close to a device generating a	Move the device away from the monitor until the
	strong magnetic field?	picture stabilises.
No colors, wrong	Is the color system selected properly?	Set COLOR SYSTEM in the <MENU> screen to
color, or dark		AUTO. (See page 8.)
picture.
	Has the picture control setting (CONTRAST,	Set each picture control to the standard setting.
	BRIGHT, CHROMA or PHASE) been changed?	(See page 7.)
Unnatural, irregularly	Is the monitor close to a speaker, magnet or any	Move the device away from the monitor and turn
colored, or distorted	other device generating a strong magnetic field?	the monitor’s power off. Wait at least 30 minutes,
picture.		then turn the power on again.
Dark stripes appear	Is the aspect ratio set to 16:9?	Set ASPECT RATIO in the <MENU> screen to
at the top and bottom		[4 : 3 (4 – 3)]. (See page 8.)
of the screen, picture		When controlling externally, ASPECT RATIO
vertically squeezed.		should be set to [4 : 3 (4 – 3)].
		(See pages 12 and 13.)
The overall picture	Has the UNDER SCAN button been pressed so	Press the UNDER SCAN button to turn off the
size is too small.	the UNDER SCAN indicator lights?	indicator. (See page 4.)
Function buttons on	Has control of the buttons been locked? (Has	Set CONTROL LOCK in the <SET-UP MENU>
the front panel do not	the CONTROL LOCK function been set to ON?)	screen to OFF. (See pages 9 and 10.)
function.
The INPUT SELECT	Is input selection under external control? (Has	Set INPUT REMOTE in the <SET-UP MENU>
buttons do not	the INPUT REMOTE function been set to valid	screen to OFF. (See pages 9 and 10.)
function.	(A/B)?)

The following are not malfunctions:

When a bright still image (such as a white cloth) is displayed for a long period, it may appear to be colored. This is due to the structure of the cathode ray tube and will be deleted when another image is displayed.

You experience a mild electric shock when you touch the picture tube. This phenomenon is due to a normal buildup of static electricity on the CRT and is not harmful.

The monitor emits a strange sound when the room temperature changes suddenly. This is only a problem if an abnormality appears on the screen as well.

If two or more monitors are operated next to each other, their images may shake or be distorted. This phenomenon is due to mutual interference; it is not a malfunction. Move the monitors away from each other until the interference disappears or turn the power off on any monitor that is not being used.

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